Maybe relevant - I carefully followed the steps here [1] to successfully convert my old desklamp iMac 20" to a DVI monitor. I hooked it up to my desktop Linux machine (of course hidden under the desk :) and felt as happy as a man can ever be. So great to give this old Mac a new leash of life! I think the principle is same for this new model too. [1] http://www.dremeljunkie.com/2011/11/all-in-one-20-imac-g4-genuine-tmds-to.html